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  2. Freewheel - Wikipedia

    en.wikipedia.org/wiki/Freewheel

    A freewheel was also used in the original Land Rover vehicle from 1948 to 1951. The freewheel controlled drive from the gearbox to the front axle, which disengaged on the overrun. This allowed the vehicle to have a permanent 4 wheel drive system by avoiding 'wind-up' forces in the transmission. This system worked, but produced unpredictable ...

  3. Tricycle - Wikipedia

    en.wikipedia.org/wiki/Tricycle

    Children's trikes can have pedals directly driving the front wheels, allowing braking with the pedals, or they can use chain drive the rear wheels, often without a differential, so one rear wheel spins free. Children's trikes do not always have pneumatic tires, having instead wheels of solid rubber or hollow plastic. While this may add to the ...

  4. List of bicycle parts - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_parts

    Cluster: a bicycle cogset, either a freewheel, or cassette; Cogset: the set of rear sprockets that attaches to the hub on the rear wheel; Cone: holds bearings in place, pressed against the cup; Cotter: pin for attaching cottered cranks; Coupler: to connect tubing together; Crankset or chainset: composed of cranks and at least one chainring

  5. Bicycle drivetrain systems - Wikipedia

    en.wikipedia.org/wiki/Bicycle_drivetrain_systems

    A chain drive and rear derailleur gear change, the most popular system in use today A shaft-drive with crankset and rear gear hub. Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels.

  6. Front freewheel - Wikipedia

    en.wikipedia.org/wiki/Front_freewheel

    The Shimano Front Freewheel (FFS) was a proprietary bicycle drivetrain design of the 1970s that placed a freewheel between the pedal cranks and the front chainrings – enabling the rider to shift gears while coasting. [2] FFS rear freewheel is different than a standard freewheel because it's "stiff" with more friction than a normal rear freewheel.

  7. Kids need free play to stay healthy, and they're not getting ...

    www.aol.com/kids-free-play-stay-healthy...

    We started out mixing up parents and children, making sure the kids got the ball most of the time. The game has evolved (or perhaps devolved, judging from some occasional trash talk) into parents ...

  8. Locking hubs - Wikipedia

    en.wikipedia.org/wiki/Locking_hubs

    The main advantage is that the driver does not need to leave the vehicle to connect the wheels to the axle. The disadvantage with this system is that most designs require the vehicle to move some distance (usually a whole wheel turn, often going backwards) after engaging the hubs in order for the hubs to engage or disengage.

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